WAEC Physics 2011 Theory — Question 8

Model answer

(a) Applications of electrolysis in industry: (i) electroplating, (ii) extraction of metals (electrometallurgy), (iii) purification of metals such as copper, silver, gold, aluminium etc, (iv) manufacturing of non-metals such as hydrogen (any two). (b) Application in school laboratory: determination of equivalent mass of elements; manufacturing of compounds such as NaOH; electrolysis of acidified water; calibration of an ammeter (any one).